Let
f
(
y
)
=
5
y
−
1
−
10
y
2
−
1
\displaystyle {f{{\left({y}\right)}}}={\frac{{{5}}}{{{y}-{1}}}}-{\frac{{{10}}}{{{y}^{{2}}-{1}}}}
f
(
y
)
=
y
−
1
5
−
y
2
−
1
10
Evaluate the limit:
lim
y
→
1
f
(
y
)
=
\displaystyle \lim_{{{y}\to{1}}}\ \ {f{{\left({y}\right)}}}=
y
→
1
lim
f
(
y
)
=
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\displaystyle
Enter your answer as a number (like 5, -3, 2.2172) or as a calculation (like 5/3, 2^3, 5+4)
Enter DNE for Does Not Exist, oo for Infinity